Interface

How to manage memory ?

22-Mar-2019

In ISA, the memory is managed thru smart pointer because of the efficiency and simplicity of this approach. On usual systems, the O.S. also provides Processes. To free objects, the process wall is broken by ISA! But this implies some memory management adjustments.

To be or not to be Generic

4-Feb-2019

Thesis: Not to be generic At first, I didn’t want to include generics in LL. This is mainly for two reasons. First, because it is really hard to conceive and understand a generic algorithm. This goes at contrary of the Wish N°5 – Simple and freed of experts. In my professional life, I have often …

Generation algorithms of Object id

5-Jan-2019

The object identifier production is one of the most important thing in an OO Architecture, and even more when it is a distributed one. This post is about some key items of the Identity axiom. Its major concerns are integrity, isolation and performance.

Overview of the LL type system

25-Dec-2017

This post is some kind of tutorial on the Last Language type system. Not just a tutorial in fact, but a discussion space to challenge the ISA type architecture.

Object Oriented Guidelines

4-Dec-2016

ISA relies on the Object Oriented paradigm. Let me now join OO with our wishes. Some guidances emerge . The first one is, not surprisingly, “Everything in ISA is an Object”!

The SOA paradigm case

31-Oct-2016

What is really the SOA? Analyzing pros and cons, is this a concept usable for ISA? This post conclude that no, it isn’t. OO is more powerful and provides a wider consistancy.
However, some SOA central properties have to be incorporated in ISA. Let’s have a look to them!

The State axiom – Part 4

24-Jun-2016

Here I study the Class Object state axiom in the perspective of an incorporation in ISA. What’s about the Class life cycle ? And about the Versioning, the Grouping and the Delivery ?

The State axiom – Part 3

1-Mar-2016

Third post on the object state axiom. Here I will speak about the state of the Class object and begin to define what it is. It is also question of immutability and of threaded objects.

The State axiom – Part 2

28-Dec-2015

In this second post on Object state, we will see what are Fields, Relationships, Properties and Attributes; and why and how to put them all together.

The State axiom – Part 1

18-Dec-2015

This post answers the question “What’s a State ?”. It also consider object life cycle and the basic Design Patterns. Finally, Eiffel’s advanced features around state are evoked.